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<FONT color="green">001</FONT>    package org.hackystat.sensorbase.logger;<a name="line.1"></a>
<FONT color="green">002</FONT>    <a name="line.2"></a>
<FONT color="green">003</FONT>    import java.io.File;<a name="line.3"></a>
<FONT color="green">004</FONT>    import java.io.IOException;<a name="line.4"></a>
<FONT color="green">005</FONT>    import java.util.logging.ConsoleHandler;<a name="line.5"></a>
<FONT color="green">006</FONT>    import java.util.logging.FileHandler;<a name="line.6"></a>
<FONT color="green">007</FONT>    import java.util.logging.Level;<a name="line.7"></a>
<FONT color="green">008</FONT>    import java.util.logging.LogManager;<a name="line.8"></a>
<FONT color="green">009</FONT>    import java.util.logging.Logger;<a name="line.9"></a>
<FONT color="green">010</FONT>    <a name="line.10"></a>
<FONT color="green">011</FONT>    <a name="line.11"></a>
<FONT color="green">012</FONT>    /**<a name="line.12"></a>
<FONT color="green">013</FONT>     * Supports logging of informational and error messages by this SensorBase.<a name="line.13"></a>
<FONT color="green">014</FONT>     * @author Philip Johnson<a name="line.14"></a>
<FONT color="green">015</FONT>     */<a name="line.15"></a>
<FONT color="green">016</FONT>    public class SensorBaseLogger {<a name="line.16"></a>
<FONT color="green">017</FONT>      /** The string used to identify the logger and log files associated with this logger. */<a name="line.17"></a>
<FONT color="green">018</FONT>      private static String loggerName = "sensorbase-uh";<a name="line.18"></a>
<FONT color="green">019</FONT>      <a name="line.19"></a>
<FONT color="green">020</FONT>      /**<a name="line.20"></a>
<FONT color="green">021</FONT>       * Private constructor disables default public no-arg constructor. <a name="line.21"></a>
<FONT color="green">022</FONT>       */<a name="line.22"></a>
<FONT color="green">023</FONT>      private SensorBaseLogger() {<a name="line.23"></a>
<FONT color="green">024</FONT>        // Does nothing.<a name="line.24"></a>
<FONT color="green">025</FONT>      }<a name="line.25"></a>
<FONT color="green">026</FONT>    <a name="line.26"></a>
<FONT color="green">027</FONT>      /**<a name="line.27"></a>
<FONT color="green">028</FONT>       * Returns a logger for this service, creating it if it couldn't be found.<a name="line.28"></a>
<FONT color="green">029</FONT>       *<a name="line.29"></a>
<FONT color="green">030</FONT>       * @return   The logger.<a name="line.30"></a>
<FONT color="green">031</FONT>       */<a name="line.31"></a>
<FONT color="green">032</FONT>      public static Logger getLogger() {<a name="line.32"></a>
<FONT color="green">033</FONT>        Logger logger = LogManager.getLogManager().getLogger(loggerName);<a name="line.33"></a>
<FONT color="green">034</FONT>        if (logger == null) {<a name="line.34"></a>
<FONT color="green">035</FONT>            logger = Logger.getLogger(loggerName);<a name="line.35"></a>
<FONT color="green">036</FONT>            logger.setUseParentHandlers(false);<a name="line.36"></a>
<FONT color="green">037</FONT>    <a name="line.37"></a>
<FONT color="green">038</FONT>            // Define a file handler that writes to the ~/.hackystat/logs directory, creating it if nec.<a name="line.38"></a>
<FONT color="green">039</FONT>            File logDir = new File(System.getProperty("user.home") + "/.hackystat/logs/");<a name="line.39"></a>
<FONT color="green">040</FONT>            logDir.mkdirs();<a name="line.40"></a>
<FONT color="green">041</FONT>            String fileName = logDir + "/" + loggerName + ".%u.log";<a name="line.41"></a>
<FONT color="green">042</FONT>            FileHandler fileHandler;<a name="line.42"></a>
<FONT color="green">043</FONT>            try {<a name="line.43"></a>
<FONT color="green">044</FONT>              fileHandler = new FileHandler(fileName, 500000, 1, true);<a name="line.44"></a>
<FONT color="green">045</FONT>              fileHandler.setFormatter(new OneLineFormatter());<a name="line.45"></a>
<FONT color="green">046</FONT>              logger.addHandler(fileHandler);<a name="line.46"></a>
<FONT color="green">047</FONT>            }<a name="line.47"></a>
<FONT color="green">048</FONT>            catch (IOException e) {<a name="line.48"></a>
<FONT color="green">049</FONT>              throw new RuntimeException("Could not open the log file for the SensorBase", e);<a name="line.49"></a>
<FONT color="green">050</FONT>            }<a name="line.50"></a>
<FONT color="green">051</FONT>    <a name="line.51"></a>
<FONT color="green">052</FONT>            // Define a console handler to also write the message to the console.<a name="line.52"></a>
<FONT color="green">053</FONT>            ConsoleHandler consoleHandler = new ConsoleHandler();<a name="line.53"></a>
<FONT color="green">054</FONT>            consoleHandler.setFormatter(new OneLineFormatter());<a name="line.54"></a>
<FONT color="green">055</FONT>            logger.addHandler(consoleHandler);<a name="line.55"></a>
<FONT color="green">056</FONT>            setLoggingLevel(Level.INFO);<a name="line.56"></a>
<FONT color="green">057</FONT>          }<a name="line.57"></a>
<FONT color="green">058</FONT>        return logger;<a name="line.58"></a>
<FONT color="green">059</FONT>      }<a name="line.59"></a>
<FONT color="green">060</FONT>    <a name="line.60"></a>
<FONT color="green">061</FONT>      /**<a name="line.61"></a>
<FONT color="green">062</FONT>       * Sets the logging level to be used for the Hackystat logger. <a name="line.62"></a>
<FONT color="green">063</FONT>       * @param level The new Level.<a name="line.63"></a>
<FONT color="green">064</FONT>       */<a name="line.64"></a>
<FONT color="green">065</FONT>      public static void setLoggingLevel(Level level) {<a name="line.65"></a>
<FONT color="green">066</FONT>        Logger logger = LogManager.getLogManager().getLogger(loggerName);<a name="line.66"></a>
<FONT color="green">067</FONT>        logger.setLevel(level);<a name="line.67"></a>
<FONT color="green">068</FONT>        logger.getHandlers()[0].setLevel(level);<a name="line.68"></a>
<FONT color="green">069</FONT>        logger.getHandlers()[1].setLevel(level);<a name="line.69"></a>
<FONT color="green">070</FONT>      }<a name="line.70"></a>
<FONT color="green">071</FONT>    }<a name="line.71"></a>
<FONT color="green">072</FONT>    <a name="line.72"></a>




























































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